Uninterruptible DC power supply for equipment associated with a mobile site
First Claim
1. An uninterruptible power supply circuit for selectively connecting a direct current source to equipment which is to be operated by the direct current source, comprising:
- a first switch for selectively connecting the direct current source to first equipment having operative components which can be electrically disconnected without a loss of function;
a second switch for selectively connecting the direct current source to second equipment having operative components which can exhibit a loss of function when electrically disconnected;
a battery, separate from the direct current source and electrically coupled with the second equipment, wherein the battery provides direct current for operating the second equipment when the second equipment is disconnected from the direct current source; and
a processor electrically coupled with the first switch and with the second switch, wherein the processor activates and deactivates the first switch and the second switch to selectively connect the direct current source with the first equipment and with the second equipment and to disconnect the direct current source from the first equipment and from the second equipment after a prescribed period of time has been counted, so that the second equipment remains connected to the battery after the second equipment has been disconnected from the direct current source.
1 Assignment
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Accused Products
Abstract
A programmable uninterruptible power supply for coupling battery powered systems associated with a mobile site, such as a vehicle, to the primary electrical system of the mobile site operates to selectively couple the battery powered systems to the electrical system of the mobile site and to a secondary, or back-up battery separate from the primary battery associated with the electrical system of the mobile site. Various system control functions are performed, including reverse battery protection, over voltage and under voltage protection, battery drain protection, battery charging detection, reverse current detection and uninterruptible power switching. For detected adverse operating conditions, the load is disconnected from the electrical system of the mobile site and the back-up battery is used to operate the battery powered systems which are to be protected from such adverse operating conditions.
30 Citations
114 Claims
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1. An uninterruptible power supply circuit for selectively connecting a direct current source to equipment which is to be operated by the direct current source, comprising:
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a first switch for selectively connecting the direct current source to first equipment having operative components which can be electrically disconnected without a loss of function; a second switch for selectively connecting the direct current source to second equipment having operative components which can exhibit a loss of function when electrically disconnected; a battery, separate from the direct current source and electrically coupled with the second equipment, wherein the battery provides direct current for operating the second equipment when the second equipment is disconnected from the direct current source; and a processor electrically coupled with the first switch and with the second switch, wherein the processor activates and deactivates the first switch and the second switch to selectively connect the direct current source with the first equipment and with the second equipment and to disconnect the direct current source from the first equipment and from the second equipment after a prescribed period of time has been counted, so that the second equipment remains connected to the battery after the second equipment has been disconnected from the direct current source. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30)
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31. A system including a first battery, equipment which is to be operated by direct current from the first battery, and an uninterruptible power supply circuit for selectively connecting the first battery to the equipment, comprising:
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a first switch for selectively connecting the first battery to first equipment having operative components which can be electrically disconnected without a loss of function; a second switch for selectively connecting the first battery to second equipment having operative components which can exhibit a loss of function when electrically disconnected; a second battery, separate from the first battery and electrically coupled with the second equipment, wherein the second battery provides direct current for operating the second equipment when the second equipment is disconnected from the first battery; and a processor electrically coupled with the first switch and with the second switch, wherein the processor activates and deactivates the first switch and the second switch to selectively connect the first battery with the first equipment and with the second equipment and to disconnect the first battery from the first equipment and from the second equipment after a prescribed period of time has been counted, so that the second equipment remains connected to the second battery after the second equipment has been disconnected from the first battery. - View Dependent Claims (32, 33, 34, 35, 36, 37, 38, 39, 40, 41, 42, 43, 44, 45, 46, 47, 48, 49, 50, 51, 52, 53, 54, 55, 56, 57, 58, 59, 60, 61, 62, 63, 64, 65)
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66. A process for supplying uninterrupted power to equipment which is to be operated by a direct current source, including first equipment having operative components which can be electrically disconnected without a loss of function and second equipment having operative components which can exhibit a loss of function when electrically disconnected, comprising the steps of:
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connecting the direct current source with the first equipment using a first switch; connecting the direct current source with the second equipment using a second switch; electrically coupling a battery which is separate from the direct current source with the second equipment, providing direct current for operating the second equipment when the second equipment is disconnected from the direct current source; and operating the first switch and the second switch to selectively connect the direct current source with the first equipment and with the second equipment and to disconnect the direct current source from the first equipment and from the second equipment after a prescribed period of time has been counted; whereby the second equipment will remain connected to the battery after the second equipment has been disconnected from the direct current source. - View Dependent Claims (67, 68, 69, 70, 71, 72, 73, 74, 75, 76, 77, 78, 79, 80, 81, 82, 83, 84, 85, 86, 87, 88, 89, 90, 91)
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92. A process for supplying uninterrupted power to equipment which is to be operated by a first battery, and a generator for charging the first battery when the generator is in operation, wherein the equipment includes first equipment having operative components which can be electrically disconnected without a loss of function and second equipment having operative components which can exhibit a loss of function when electrically disconnected, and wherein the process comprises the steps of:
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electrically coupling the second equipment with a second battery which is separate from the first battery, providing direct current for operating the second equipment if the second equipment becomes disconnected from the first battery; detecting when the generator is operating and the first battery is charging; connecting the first battery to the first equipment and to the second equipment responsive to the detecting when the generator is operating and the first battery is charging; detecting when the generator is not operating and the first battery is not charging, and starting a timer set to count a prescribed period of time responsive to the detecting when the generator is not operating and the first battery is not charging; and disconnecting the first equipment and the second equipment from the first battery after the prescribed period of time has been counted; whereby the second equipment will remain connected to the second battery, maintaining a supply of power to the second equipment when disconnected from the first battery. - View Dependent Claims (93, 94, 95, 96, 97, 98, 99, 100, 101, 102, 103, 104, 105, 106, 107, 108, 109, 110, 111, 112, 113, 114)
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Specification